WO2012052570A1 - Structure de support pour des miroirs ou des réflecteurs de systèmes de concentration solaire et procédé d'installation des miroirs sur la structure - Google Patents

Structure de support pour des miroirs ou des réflecteurs de systèmes de concentration solaire et procédé d'installation des miroirs sur la structure Download PDF

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Publication number
WO2012052570A1
WO2012052570A1 PCT/ES2010/070666 ES2010070666W WO2012052570A1 WO 2012052570 A1 WO2012052570 A1 WO 2012052570A1 ES 2010070666 W ES2010070666 W ES 2010070666W WO 2012052570 A1 WO2012052570 A1 WO 2012052570A1
Authority
WO
WIPO (PCT)
Prior art keywords
mirrors
frames
profile
support
support structure
Prior art date
Application number
PCT/ES2010/070666
Other languages
English (en)
Spanish (es)
Inventor
Juan Domingo Ortega Martinez
Original Assignee
Renovalia Energy, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renovalia Energy, S.A. filed Critical Renovalia Energy, S.A.
Priority to PCT/ES2010/070666 priority Critical patent/WO2012052570A1/fr
Priority to EP10812982.6A priority patent/EP2631557A1/fr
Publication of WO2012052570A1 publication Critical patent/WO2012052570A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
    • F24S23/745—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces flexible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • F24S25/13—Profile arrangements, e.g. trusses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/82—Arrangements for concentrating solar-rays for solar heat collectors with reflectors characterised by the material or the construction of the reflector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Definitions

  • the present invention as set forth in the title of the invention is a mirror support structure for solar concentration systems, as well as, the method of assembling the concentrator mirrors on the structure.
  • a solar concentrator seeks to concentrate the solar radiation received by the capture surface of the concentrator at a point where a receiver is received that receives solar energy in a concentrated manner and previously reflected by a series of reflecting mirrors arranged on the collection surface. Also, the object of the present invention is the method of assembling the mirrors on the structure such as that which is the object of the invention.
  • Characterizes the present invention the special configuration and design of each of the frames that are part of the structure of the concentrator, so that a concentration system that is easy to manufacture, also to assemble and that offers high structural stability is achieved, without that deviations occur in the light reflected by the mirrors on the point of concentration. Therefore, the present invention is circumscribed within the scope of the support structures of the solar collection systems, and particularly among those referred to concentration systems.
  • the reflection mirrors of sunlight placed on the collection structure must be fixed and placed with a very high precision, since any deviation in final position, with respect to the ideal position, implies a loss of concentration, since the reflected beam can even impact outside the surface of the receiver.
  • the ribs or frames used for fixing and supporting the reflection crystals are formed from sheets or sheets of galvanized steel, or similar materials that are folded on the upper profile by a folding machine or a stamping , which defines a support surface, on this support wing a series of perforations are made on which to fasten each of the pieces of the mirror that forms the collection surface by screws, for this the pieces of mirrors must have glued by its rear part, from a piece that does the nut functions on which to screw a screw, or directly a piece as a threaded rod.
  • the mirrors in the concentration systems are screwed to the support structure and as the mirrors are manufactured among other forms by mirrored and curved crystals or by reflective sheets adhered to plastic, metal or other material substrates that form the curvature of the concentrator , it is necessary to form a face more or less parallel to the surface of the mirrors with holes to fix the screws / nuts for fixing the mirror.
  • the materials and processes for fixing the pieces of mirrors on the parabolas is a source of imbalances and imbalances, and consequently the object of the present invention is both a support structure for mirrors and reflectors for solar concentration systems, as the necessary process that allows to overcome the aforementioned problems.
  • the object of the invention is a support structure for mirrors or reflectors for solar concentration systems, as well as the procedure for mounting the mirrors that make up the surface of the solar concentrator on the frames that make up the support structure.
  • the support structure of the mirrors or reflectors is made up of a series of frames or ribs that are used to mount concentrators solar of different configurations, which may well be cylindrical-parabolic collectors, even parabolic discs or tower heliostats.
  • All these solar concentration systems are basically configured by a series of stamped frames or a series of lattices, and in the case of stamped frames, a cut and subsequent folding of at least one of its edges must be made to define a support surface on which to fix the mirrors of the solar receiver.
  • the frames have as a fundamental characteristic the fact of presenting a surface that accurately reproduces the curvature of the mirrors on which they rest directly without using screws as means of fixing the frame or structure to the mirror.
  • this support surface is reproduced along the curve that defines the mirror, so that the mirror supports evenly over the entire length of the frame, so that the tensions and deviations caused on the mirrors are eliminated, by not there are specific points of attachment to the structure as with the screws
  • the methods for cutting the upper profile of the frames can be from a laser cutting to water cutting, flame cutting, stamping and so on.
  • the frames may have means for fixing the position of the mirrors during the gluing process, which serve as fixation in the positioning of the reflecting mirrors, avoiding the displacement of the mirrors on the profile of the frames.
  • the frames may optionally have a folding in the opposite profile to the support of the mirrors so that it defines a wing or horizontal surface on which there is a perforation to fix the ends of some possible plates of union of the frames. This folding gives greater rigidity to the frames, in addition to serving as a means of fixing the tie plates of the frames.
  • the frames at one of its ends have joining means for fixing each of the frames to a central support and fixing structure.
  • a possible procedure for mounting the reflector mirrors of the concentrator on the frames has the following stages or processes:
  • the frames are fixed so that the upper support profile of the mirrors is at the top, which facilitates the subsequent arrangement of the reflector mirrors.
  • the fixing of the frames is carried out by means of a mold that is placed at the free end thereof, which indicates the correct position of the frames, proceeding to screw the fixing end.
  • the frames are mounted, in a possible embodiment, they are joined by means of a series of tie plates, which are fixed on some folds or wings that the frames have.
  • the mirrors are arranged so that they rest on the upper profile of the frames, being able to have means for fixing the mirrors before gluing.
  • the mirrors are fixed by gluing, which in a possible embodiment could be a silicone cord that is applied at the angle defined by the upper edge of the frames and the underside of the mirrors. This application of the fixing silicone is done so that no force is applied to the mirrors, avoiding displacements of these once fixed.
  • a concentrator is obtained, easy to assemble, easy to calibrate and that ensures very high precision, with practically zero deviations in reflection of light above the concentration point of the solar concentrator.
  • the frames are constructed with a profile or upper edge that accurately reproduces the desired curvature of the mirror.
  • Figure 1 shows a perspective representation of a frame of a parabola. PREFERRED EMBODIMENT OF THE INVENTION
  • each of the frames (1) can be appreciated, in which it can be seen that they have an essentially triangular shape, although this aspect is not limiting, since the fundamental characteristics is that the profile upper (2) or profile in contact with the reflecting mirrors, constitute a support surface that has a profile with a curvature equal to that of the mirrors along its entire length, which can be obtained by die cutting or laser cutting.
  • said profile (2) there are provided means for fixing the position of the mirrors during the gluing process, which in a possible non-limiting embodiment, could consist of one or more emerging lugs (3), which stop in the arrangement of mirrors; on one of the sides, it has a series of perforations (5) that are used to fix the frames to the structure of the concentrator, finally on the edge opposite the support profile (2) there is an edge that has a folding (4) so that it defines a surface on which there is a series of perforations on which to fix the ends of the sections of a plate of union of each other of the frames (1).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

La présente invention concerne une structure de support qui comporte des cadres (1) caractérisées en ce qu'ils présentent chacun un profil supérieur ou profil de contact avec les miroirs réfléchissants d'un concentrateur, ce profil ayant une courbure égale à la courbure du miroir, ce profil supérieur (2) comprenant en outre des moyens de fixation des miroirs avant leur collage, ce qui empêche ainsi les miroirs de bouger. Les miroirs sont donc collés sur les cadres au moyen d'un cordon de silicone appliqué au niveau inférieur. Cette structure permet aux concentrateurs équipés de ces cadres d'être plus faciles à monter et à étalonner et d'assurer une précision très importante, avec pratiquement aucune déviation de la réflexion de la lumière sur le point du concentrateur pour la lumière réfléchie.
PCT/ES2010/070666 2010-10-18 2010-10-18 Structure de support pour des miroirs ou des réflecteurs de systèmes de concentration solaire et procédé d'installation des miroirs sur la structure WO2012052570A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/ES2010/070666 WO2012052570A1 (fr) 2010-10-18 2010-10-18 Structure de support pour des miroirs ou des réflecteurs de systèmes de concentration solaire et procédé d'installation des miroirs sur la structure
EP10812982.6A EP2631557A1 (fr) 2010-10-18 2010-10-18 Structure de support pour des miroirs ou des réflecteurs de systèmes de concentration solaire et procédé d'installation des miroirs sur la structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2010/070666 WO2012052570A1 (fr) 2010-10-18 2010-10-18 Structure de support pour des miroirs ou des réflecteurs de systèmes de concentration solaire et procédé d'installation des miroirs sur la structure

Publications (1)

Publication Number Publication Date
WO2012052570A1 true WO2012052570A1 (fr) 2012-04-26

Family

ID=44344001

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2010/070666 WO2012052570A1 (fr) 2010-10-18 2010-10-18 Structure de support pour des miroirs ou des réflecteurs de systèmes de concentration solaire et procédé d'installation des miroirs sur la structure

Country Status (2)

Country Link
EP (1) EP2631557A1 (fr)
WO (1) WO2012052570A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115145001A (zh) * 2022-07-22 2022-10-04 中国科学院长春光学精密机械与物理研究所 带预紧力的次镜支撑结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2738857A1 (de) * 1977-08-29 1979-03-15 Maschf Augsburg Nuernberg Ag Tragstruktur fuer grossflaechige sonnenkollektor-anlagen
US4313422A (en) * 1980-09-25 1982-02-02 Acurex Solar Corporation Collapsible structural assembly especially suitable as a solar concentrator
CH637202A5 (en) * 1978-10-11 1983-07-15 Atlantis Energie Ag Device for collecting and concentrating solar energy on a tube for conducting a heat carrier
EP0136044A2 (fr) * 1983-08-26 1985-04-03 Allen I. Bronstein Réflecteur solaire
CN201265961Y (zh) * 2007-03-26 2009-07-01 董文书 槽形太阳能集热器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2738857A1 (de) * 1977-08-29 1979-03-15 Maschf Augsburg Nuernberg Ag Tragstruktur fuer grossflaechige sonnenkollektor-anlagen
CH637202A5 (en) * 1978-10-11 1983-07-15 Atlantis Energie Ag Device for collecting and concentrating solar energy on a tube for conducting a heat carrier
US4313422A (en) * 1980-09-25 1982-02-02 Acurex Solar Corporation Collapsible structural assembly especially suitable as a solar concentrator
EP0136044A2 (fr) * 1983-08-26 1985-04-03 Allen I. Bronstein Réflecteur solaire
CN201265961Y (zh) * 2007-03-26 2009-07-01 董文书 槽形太阳能集热器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115145001A (zh) * 2022-07-22 2022-10-04 中国科学院长春光学精密机械与物理研究所 带预紧力的次镜支撑结构
CN115145001B (zh) * 2022-07-22 2023-05-16 中国科学院长春光学精密机械与物理研究所 带预紧力的次镜支撑结构

Also Published As

Publication number Publication date
EP2631557A1 (fr) 2013-08-28

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